Computer was shutting down by itself now monitoer wont work?

Question

Hubby was burning a movie and computer shut down. did the same thing to me when i went to burn a cd. we bought a new bigger power supply and installed now the monitor will not come on. the tower comes on and you can here it running and the light on the monitor blinks but it will not come on . I need ythis as i am starting an online class. Please Help

tried to put in old power supply still would not come . the cd rom opens and everything comes on in tower. no beeeps. the monitor screen will not show up. light for power on monitor just flashes.

Answer 1

Check and make sure the Monitor plug is in the right slot behind the computer. Make sure its fitted in and tight. Maybe accidently the video card was moved when you were changing the power supply. IF those 2 fails, and you still hear no beeps - then i would think its your motherboard that is no longer responding.

Answer 2

The computer can shutdown for any number of reasons. It could be related to an issue with the optical drive, an Operating System problem, or even a hardware problem.

If you purchased a new power supply, it could be faulty. Remove it and put the old power supply back in, (unless the previous supply is faulty).

You normally only need to upgrade the power supply if you are adding a lot more hardware devices. Most power supplies that ship with a prebuilt computer will sustain the mainboard and processor, various installed cooling fans, internal hard disk, floppy disk and optical drive. Any USB devices that use Power Over USB.

If the computer stays on with the former power supply, you've isolated the problem. If you are unable to use the former power supply do the following to rule out a hardware issue.


1. Turn the compute off and than back on
2. Press F8 every two seconds until you see a boot menu
3. Choose safe mode
4. The computer will start with the minimum necessary files and drivers.
5. Let the computer run without doing anything to see if it shuts off (This will isolate both heat and power problems).
6. If the computer shuts off you'll have to isolate the actual hardware issue
7. If the computer does not shut off you'll have to isolate the software issue.

Answer 3

Hi,
When you turn on your computer, do you hear a series of beeps or (after a while) the windows welcome tune?
Or nothing at all? Can you hear fans come on?

First, DO NOT CHANGE THE JUMPER SETTINGS ON THE MOTHERBOARD, this is a Very Bad Idea. A jumper labelled JP1 on one motherboard could control fan speed, and on another it could alter CPU clock speed!!

Now, the monitor blinking indicates a) that it is actually recieving power b) that the monitor is in some kind of standby or hibernation mode.

Since you put back your old power supply this means that either:
1. The connection between the PC and monitor is faulty (or loose)
2. The PC is not sending any video
3. The monitor is faulty.

What to do is this:
1. Check the cable connecting the PC to the monitor. Make sure it is not loose at either end. If this doesn't work then CHECK the pins at the back of the PC to make sure that none is bent, replace the cable and tighten the little thumb screws.
2. Since you are reading this, you must have access to another PC? Attach the monitor to this PC to check that it is definitely not a fault with your monitor.
3. If the monitor is OK then make sure the video card in your PC is securely seated in the unit and that all cables in the PC are where they should be. In particular more modern graphics cards often have a separate connection to the power supply and since you disconnected it, you might just have forgotten to replace it!

Answer 4

Your computer needs to be jumpped. Look on your mother board and look for three pins with 2 of them connected. It should say JP1 on the mother board. remove the connector piece thats connecting two and reboot your computer. Now turn it off and put the connector back and reboot your computer. Now because your burning DVDs make sure your computer has at least 512mb of ram or your asking for bad computer performance along with computer shutdown depending on the software your using.

Answer 5

buy a new computer you might have a virus.